How to enable function keys on Windows and Mac laptops

This article guides you on how to activate the F1–F12 function keys on Windows and Mac laptops using the Fn key, F Lock key, or by configuring settings in the BIOS/UEFI to quickly access utility commands.

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Katie Double Nội dung được xác thực bởi chuyên gia
Cách bật các phím chức năng trên laptop Windows & Mac-Tiptory

Did you know that the function keys F1 to F12 on your laptop keyboard aren't just ordinary buttons, but also allow you to quickly perform many useful commands? For example, opening the help menu, refreshing a webpage, or adjusting the volume… However, these keys don't always work as you intend, so enabling/disabling them correctly will help you maximize their usefulness. This article will guide you on how to easily and quickly enable function keys on your laptop , compatible with most popular models today.

Method 1: Use the Fn key to enable the F1–F12 function keys on your laptop.

Step 1: How to use the Fn key on the keyboard

  • The Fn key is usually located in the lower left corner of the keyboard, next to the Ctrl key.

  • If you're using a full-size Mac keyboard, the Fn key might be located between the alphanumeric keypad and the numeric keypad on the right.

  • To use it, simply hold down the Fn key.

Step 2: How to use function keys (F1, F2,…) on the keyboard

  • The function keys are located on the top row of the keyboard.

  • Press and hold the Fn key, then press the function key you want to use.

  • For example, pressing Fn + F1 in an application that usually opens the help menu means you're using the correct keys.

  • On a Mac, the F1 key is typically used to decrease the volume.

Method 2: Use F Lock to activate the F1–F12 key combination for Windows & Mac

Step 1: Turn on the F Lock key to use the function keys.

  • If your keyboard has an F Lock key, you'll find it in the upper left or right corner.

  • When this button is pressed, the indicator light will usually turn on.

  • Enabling F Lock makes it easier to use the function keys (F1, F2,...).

Step 2: How to use function keys on the keyboard

  • The function keys (F1, F2,…) are located on the top row of the keyboard.

  • Press the function key you want to use to test it.

  • For example, press F1 in the application:

    • On Windows, the Help menu usually opens.

    • On a Mac, you usually lower the volume.

Method 3: Enabling the F1–F12 function keys in BIOS/UEFI step by step

Step 1: How to check and enable function keys in BIOS/UEFI

  • BIOS/UEFI is fundamental software in a computer that controls many functions.

  • If the function keys are not working, it may be because they are disabled in the BIOS/UEFI.

  • To enter BIOS/UEFI, you must press a key immediately upon turning on the computer, before the Windows logo appears.

  • Commonly used keys include F1, F2, F10, F12, Delete, or Esc — depending on your computer.

Step 2: Find the settings menu in BIOS/UEFI

  • The configuration menu may be located in different places depending on the computer manufacturer.

  • This menu is usually located in the "Advanced" section or a similar submenu.

Step 3: Find the “Hotkey” or “Fn Key” option.

  • In the settings menu, look for an item named “Hotkey”, “Fn Key”, or something similar.

  • The names may vary depending on the computer manufacturer, but they are usually related to the Fn key or function key.

Step 4: Turn on the “Hotkey” or “Fn Key” option.

  • Select Enable for the “Hotkey” or “Fn Key” option if it is currently turned off.

  • If this option is already enabled, then the reason the function key isn't working is not in the BIOS/UEFI .

Translated by Ashley Wright Nguyen .

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Katie Double Technology expert

Katie Double is a technology writer with over 5 years of experience in IT technical support and analytics. She currently lives in New Zealand and holds a degree in Psychology.

Updated on Ngày 16 tháng 07 năm 2026 (GMT +7)

3 comments

Nếu các phím chức năng của bạn không hoạt động bất kể bạn thử cách nào, bạn có thể cần bật chúng trong BIOS/UEFI.

Phạm HùngJul 12, 2025

Nếu bàn phím của bạn có phím “F Lock”, hãy nhấn phím đó để bật các phím chức năng của bạn.

Phúc Minh LêJul 11, 2025

Giữ phím “Fn” trong khi nhấn phím chức năng để nó hoạt động.

Quang TrungJul 10, 2025

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Practical knowledge

Expert Q&A

In-depth analysis and practical advice from leading experts.

It's possible that the computer is prioritizing secondary functions like volume control and brightness adjustment instead of the F1–F12 commands. You need to use the Fn key in conjunction with the Fn key or adjust the BIOS/UEFI settings to make these keys work as you intend!

If your keyboard has an F-Lock key, it's usually located in the top corner and may have an indicator light. However, not all laptops have it. Check your keyboard carefully, or look up your laptop model to see if it supports it.

It's not difficult! When you start your computer, just quickly press some special keys like F2, Delete, Esc… and you'll get in. Once inside, just find the section labeled “Hotkey” or “Fn Key” and change it to Enable. Just follow the instructions carefully; you don't need to be a tech expert!

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The content on Tiptory is for informational purposes only, based on expertise and practical experience. We are not responsible for any risks arising from the application of this information. Readers are responsible for their own judgment and decisions.
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